Metal screen.



www@ Nw 20, 1906.

Y EL'W. & W. W. WTA'FSONIl METAL SCREEN. MPLIGATION FILED, como, moa.

HENRY W. WATSON AND WILL iAM W. WATSN, OF JAMESTQWN, NEW

YORK.

ME'ET'AL SCREEN.

Specication of Letters Patent.

PatentedlNov. 20, 1906. p

Application filed October 30, 1905. Serial No. 2811-,.9i8.

To all whom it mayv concern:

Be it known that we, HENRY W. WATSON and WILLIAM W. WATSON, citizens of the United States, and residents of Jamestown,

in the county of Chautauqua and StateA of New York, have inventedA new and useful Im rovements in Metal Screens, of which theL fel owing, taken in connection with the accompanying drawings, is a full, clear, and exact description. y

The invention relates to metallic vscreen construction for windows and like o enings and is an improvement upon the tubuljar con struction shown in our application for Letters Patent filed July 27, 1905, bearing Serial No. 271,416. v

lThe object of this improvement. is to prodvide means for stiiiening and strengthening the tubular`sheetmetal-rame sides and the zo channel-pieces for the frame to slide in, so

r Wm 5 o- Similar numerals refer to, corresponding' that exceedingly light and thin sheet metal can be used without impairing the rigidity of the frame, thus makingan exceedingly light and strong screen. The extra Weight of the all-metal construction is almost prohibitive a ainst the use of f metal and any means w `ch combines strength and lightness is a great improvement.

ln the drawings, Figure 1 is a plan view of the full-size screenand channel-pieces for the Window-casing with the central portions brokenl away vertically and horizontally. 2 is a perspective view of one of the ends of the tubular frame sides, land 3 is a perspective view ofV the opposite vend which lits into the end shown in Fig. 2 to form a frame-corner. Fig. 4 is a sectional view of the tubular frame sides at line X X in Fig. 1. F 5l is a sectional view of the tubular frame sides with the .reinforcing-strip, and Fig. 6 is an end view of the detached reinforcing-strip. Fig. 7 "is an end view ofthe channel-piece iu which the spring side ofthe screen slides on the window-casing; and Fig. 8 is an end view of a filled channehpiece for the opposite side of the screen, so that said charme -pieces shall, present an vequal Width and even appearance on each side of the parts in the several views.

tinguished from a s lit'tube. lutely prevents the si ping of one edge on,

The numeral 10 indicates the tubular metal frame side or end, which is cut and bent from the flat sheet-metal strip by means of suitable t dies and presses. The tube of frame side 10 is preferably made in the rectangular form an `has along itsinner ed e a len thwise re cess or channel 11, forme'. from t e strip by` extending both the edges of the sheet metal when brought into contact Aat the lower cor-l ner of the tube out in the angular flange l12, the two contacting edges Lbeing pressed together and bent at right an les at 13 to' form channel l1, and the inner e ge left short and the outer edge extended inwardly over said inner edge to form a locking projection 14 for a purpose hereinafter set forth.

ln order to form a tight tube 10 andr to give great rigidity to the'frame, the two c0ntacting edges which form the angular ange 12 are preferably united by4 solder or brazing, so that they are as one, a solid tube as dis- Tliis absothe other from to'rsiona strain onthe screenframe and gives great rigidity to the construction.

It is found highly desirable to make the frame sides 10 of exceedinglylight or thin sheet' metal. This is particularly advantageous `in making screen-frames of large I size, since such screensare exceedingl heavy and impracticable where heavy-meta stiiiz'ening-rods have to be used. In order to use a light weight of sheet metal in the tubular sides ,10 and flange 12, it mustbe stiifened. vAccordingly s aced beads or ribs .15l are pressed into t ie-thin sheet metal, thereby` giving great added stiffness-to the metal, particularly in the angular corners, both in the tubular sides 10 and in the channel-strips 16 and 17. The beads 15 in the l:trame sides 10 lextend from a point in the rear wall of the channel 11, which ending 18 of the bead has an added utility, as hereinafter set forth, and extends around the tubular portion and across the bottom of the iiange 12 and passes up the side a suiiicicnt distance to give the'vv necessaryy rigidity to -theangulanflange corner 13; It is apparent that the ribs 15 wouldv act asa brace, adding great stitlness to the IOC flange and allowing of the use .of a' muchi sqnz'u'e- :1m/ross, ne et and e slotted opening r edgeA 2G', which is allowedendi ironie in channel, il 'bj/Ineens of .il

14 of the Sheet metal on the flange lfom n lighter; .weight ol sheet mensili hnn would otherwise be possible; The @Wo-edges of the stri i which form the angular flange l2 are bo -ndented inmhese spneedbeed'e iin-'addi'- tion to theisolder, and thereby greatly eid' in giving rigidity to the frenieeioles and in preventing the s ipping of the seid )erts on one` :mot-her from-torsional strain. of t e freine.

The heads l5 nre smell in lhefiene sides and slip easily hack and forth within the channel-strips l'end 17. The heads exend clear across the 'bottoni olf' the ehennelfstrip 17, as shown' in' Fig. 8, and perl; Way up the side, hul; only ne e breeeerouncl tlieeorner ol' strip lo', es shown infliig. 7, in order that e snnooihl cen-'nmll portionl 550i may he left for springco elifle on,

The opposing enfle oil the tubular freine sidles are mede inthe following .inn-nner: End 1.91'3 out et the regular angle of e fonty-f1fvecle gree miler Vinh the exception of the enten io projeel slightly so oever the opposing end One half of the drn-i-hole21l-ie out in end4 1G-and the othen heli in the opposing end The inner-plate forming olie bottoni- Of'tli'e channel 1l is culi is thereby ieb 'no' receive' slieelenietalE flange oi- The opposing enel formed'withl projecf ingv llenges and' 2li. iiohj lheeeengee pees Withiny tubular end` 'fas shown in not tedontline in Fig; l', theylienge 25 enering the sion 23 anni.' pressing? egainel; the Bonfire 22, thereby forming-e emooliloy betteln to bhe- Channel' 1-1 at eacheorner andE looking the corner. Flange-e 25 and 26 also give plentj,T of surface for soldering tnie jointA eesurely, und the thin sheet. metal' is given e slight deproesion, ae et- 27, so as to give n, perfectly sinoothionter surface to the joint end one of greetfstrcngth. This construe- L'ion of the iframel also leave@ the inner' eide peileetly S1nooth,so that the (l1-einzige to the drip-hole 2l is perfect, being no oli-- struction.

Ilhe screen-wire 28 :is attached to the ne closed tnhe strip 29,'which is o-lifxhi weiglineo tha the; sides of' the tube will spring slightly when preseed into channel ll. The ende oi the bende l5 'in the Teer wall el' channel ll liorm'looking projections which hold the l'ulaef look strip Within rhe'ehennel and with edge the projecting the opposite enel.

locking ineens whicl'i hol l the tuin :Elfi 'firmly in pince4 ,lt is apparent the@ 4the Screen-wire 28 een lie out the desired izo 'lit the frame, and" the tubular etips 29 can be out the desired lenffth. o il@ evenly within the channel ll et eli-oi Sfiie. lll/lien il (loeirous Lliei. en ego .i `ecedniigly siren; channel l l nhonlfi lio malle g shown et 32 in Fig. 6.

in order to reeist 'the tension of wire fe bric 28,

'linnge l2' may he reinforced! by a cliennelstrip 3l, inserted between the two pieles Whiehfregnlnny form the Seid angular Harige l2, ee shown in Fig. 5,the lower 'side and' inner corner being cross-beaded to Correspend to the heads in the outer pletbes, esv

Reinforcing channelstrip 3l may also be soldered to the adjacent edges ol the Istrip forming the channel, zhereby making en exceedingly strong angular lenge for the channel where greet strength is needed and not` adding to the Weight ofthe tubular part; offre-me sides l0. l

A@ is Well known, provision mush. be made in the channel-strips on the windoiwcasing at one side for theellipticel Springs 33', While the 8o channel-strips l@ and' 17 of ecpi'zrl depth-and 8 5 insert e. lfiller 34, Wliiolrconeists of en inverted ehenneletrip end gives bheg'oorreot depth to ehnnnebpieee i7. VTileed'ges of the thin sheet-.metal cli.n:rinel-stripe are preferably tur-ned inward, face against the screen'eme ,'10 in orclernot; to infn the seme, ne wou-icl the Sherped'ges of en unurnefl ed Vlie claim es newx l. ln e rnetel screen, e freine, tliesir/l'e and' end pieces of Seial freine ee-oli eoneietingof. n, eo nly tube, nv channel along said" tube,

eeeenewire, and e locking means to hold seid -Wire inseid-oliennel. Y

2. ln :mnetel screen, e neme, theside andend pieces of sind frame each eoniposedol srips of hendeble sheet mel/elfornied ina brezed tube, a channel along seid, tube, Screen-Wire, end e loelringetrip to hold seid Wire in seid channel.

Il, ln n metal Screen, n freine, the side and enfl pieces of seid freine eneh composed" of Stripe oi Ineml formed in hohe Wih lapped erigere, Seid lappedv eliges hrnzecl 'together end 'formed in eclinnnel along' seid tube', Screen Wire, and n locking-strip to hold ssi-icl Wire-in seid channel.

` 4, vln e winclow-screen, e 'immeeonsisting of nml cnil. pieces lnwing n channel iiherein, Sereenevire, and e metallic tnbelooking strip channel. Y

:in a Winrl'mv-eoreen, n freine, each side `for holding eeirlwire in seid seid freine .formed by n, strip lof sheet inetailllhmfing the central portion formed inn4 iulie and the edge portions of said sheet metal united' by solder and shaped', in n, lengthwise angular flange to form e, channel with one eide oi Seid tube, Screener/'irgend ai innig-strip te iii: Seid channel.

, in :i indonesia-een', freine, the eide eo ne 'no give e rounding sur- 9o and end pieces of said frame consisting of a I In testimony whereof We have signed oui' solid tube, eachof said pieces formed from e names to this specification in the psesenee of 1o strip of sheet metal, a channel formed by the l two subscribing Witnesses, bent-up double-edge portion of said strip HEN Y W. i/VA SGN and one side of seid tube, spaced crosswise VJUQLAM WTSON. g ribs pressed in seid sheet metal to brace said l Witnesses:

tube and channel, screen-Wire, and a retein- 1 A. W. KETTLE, ing-strip for said wire to t said channel. g I. A.. ELL-@WORTH 

